Full Stack Developer - React.js / Node.js / IoT

About The Role Infolitz Software Pvt. Ltd. is looking for a Full Stack Developer with3-5 years of hands-on experience in building web applications, backendservices, APIs, and connected/IoT applications. The ideal candidate should have strong experience in React.js,Node.js, Express.js, MongoDB, JavaScript, and TypeScript, along withpractical exposure to cloud deployment, real-time communication, andapplication integrations. This role involves working across frontend, backend, database, cloud,and device-connected application layers. Key Responsibilities

• Design, develop, test, and maintain scalable web and full-stack applications.
• Build responsive frontend applications using React.js, Next.js, Tailwind CSS, Bootstrap, Material UI, or similar technologies.
• Develop backend services and REST APIs using Node.js and Express.js.
• Design and work with databases such as MongoDB and PostgreSQL.
• Develop and maintain real-time application features using WebSocket, Socket.io, MQTT, or similar protocols.
• Integrate frontend applications with REST APIs and third-party services using Axios or related libraries.
• Work on IoT and connected-product applications involving sensor/device data, MQTT communication, TCP services, and dashboards.
• Implement authentication, validation, error handling, logging, and application security best practices.
• Deploy and maintain applications on cloud platforms such as AWS, GCP, or Azure.
• Work with Docker-based application environments where required.
• Use Git/GitHub for version control, branching, code reviews, and release management.
• Troubleshoot application, API, database, connectivity, and deployment issues.
• Collaborate with hardware, firmware, mobile, QA, and cloud teams on integrated product development.
• Participate in technical design discussions and contribute to application architecture decisions.
• Maintain clear technical documentation for APIs, modules, configurations, and deployments. Frontend
• React.js
• JavaScript
• TypeScript
• HTML5
• CSS3
• Tailwind CSS
• Bootstrap
• Material UI / Ant Design
• React Query
• Redux Toolkit
• Axios Backend
• Node.js
• Express.js
• REST API development
• API integration
• Authentication and authorization
• Backend error handling and logging Database
• MongoDB
• PostgreSQL
• Database schema/design understanding
• Query optimization fundamentals Real-Time & IoTTechnologies
• MQTT
• WebSocket / Socket.io
• TCP socket communication
• Experience integrating applications with IoT devices or sensor platforms Cloud & DevOps Skills Candidates should have exposure toat least one major cloud platform:
• AWS
• Google Cloud Platform
• Microsoft Azure